2133145573 has 4 divisors (see below), whose sum is σ = 2297233708. Its totient is φ = 1969057440.

The previous prime is 2133145541. The next prime is 2133145589. The reversal of 2133145573 is 3755413312.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 295908804 + 1837236769 = 17202^2 + 42863^2 .

It is a cyclic number.

It is not a de Polignac number, because 2133145573 - 2⁵ = 2133145541 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2136145573) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 82044048 + ... + 82044073.

It is an arithmetic number, because the mean of its divisors is an integer number (574308427).

Almost surely, 2^2133145573 is an apocalyptic number.

It is an amenable number.

2133145573 is a deficient number, since it is larger than the sum of its proper divisors (164088135).

2133145573 is a wasteful number, since it uses less digits than its factorization.

2133145573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164088134.

The product of its digits is 37800, while the sum is 34.

The square root of 2133145573 is about 46185.9889252141. The cubic root of 2133145573 is about 1287.2814115727.

Adding to 2133145573 its reverse (3755413312), we get a palindrome (5888558885).

The spelling of 2133145573 in words is "two billion, one hundred thirty-three million, one hundred forty-five thousand, five hundred seventy-three".